Mavorixafor has been evaluated across multiple clinical trials spanning Phase I through Phase III to investigate its therapeutic potential in rare immunologic, hematologic, and infectious conditions, including WHIM syndrome, chronic neutropenia, Waldenstrom's macroglobulinemia, HIV, hepatic insufficiency, and healthy volunteers. Sponsored by pharmaceutical entities such as X4 Pharmaceuticals alongside public bodies like the National Institute of Allergy and Infectious Diseases, these studies encompass active non-recruiting, recruiting, and completed stages. The development program features pivotal Phase III research in WHIM syndrome.
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT06056297 | RECRUITING | Neutropenia |
X4 Pharmaceuticals |
2024-06-06 | PHASE3 |
| NCT06858696 | COMPLETED | Hepatic Insufficiency |
X4 Pharmaceuticals |
2025-02-28 | PHASE1 |
| NCT03995108 | COMPLETED | WHIM Syndrome |
X4 Pharmaceuticals |
2019-10-24 | PHASE3 |
| NCT06914869 | COMPLETED | Healthy Participants |
X4 Pharmaceuticals |
2025-02-18 | PHASE1 |
| NCT04154488 | COMPLETED | Neutropenia |
X4 Pharmaceuticals |
2021-10-16 | PHASE1; PHASE2 |
| NCT04274738 | COMPLETED | Waldenstrom's Macroglobulinemia |
X4 Pharmaceuticals |
2020-04-30 | PHASE1 |
| NCT03005327 | COMPLETED | WHIM Syndrome |
X4 Pharmaceuticals |
2016-12 | PHASE2 |
| NCT04154488 | Active not recruiting | Neutropenia |
X4 Pharmaceuticals |
2020-10-16 | Phase 1|Phase 2 |
| NCT04274738 | Completed | Waldenstrom''s Macroglobulinemia |
X4 Pharmaceuticals |
2020-04-30 | Phase 1 |
| NCT03995108 | Active not recruiting | WHIM Syndrome |
X4 Pharmaceuticals |
2019-10-24 | Phase 3 |
| NCT00063804 | Completed | HIV Infections |
National Institute of Allergy and Infectious Diseases (NIAID)|Advancing Clinical Therapeutics Globally for HIV/AIDS and Other Infections |
Phase 1 |
(data from https://clinicaltrials.gov, updated on 2026-08-06)
Mechanism and Biochemical Profile
Appendix RUO and cGMP Quality Standards
| Quality Dimension | RUO (Research Use Only) | cGMP (Current Good Manufacturing Practice) |
|---|---|---|
| Clinical Applicability | Prohibited in human clinical trials or medical diagnostics. | Mandatory for human clinical trials (Phase I–III) and therapies. |
| Regulatory Status | Non-regulated grade; exempt from drug manufacturing laws. | Legally enforced by health authorities (e.g., FDA, EMA, NMPA). |
| Facility Environment | Unclassified analytical or research laboratories. | Validated Cleanrooms (ISO Class 5–8) with continuous monitoring. |
| Quality Control | Basic purity and activity testing. | Rigorous safety release testing (Sterility, Endotoxin, Mycoplasma). |
| Process Validation | Basic equipment calibration; no process validation required. | Full qualification (IQ/OQ/PQ) and complete batch records. |
| Quality Assurance | Vendor self-declared without required formal QMS. | Mandatory QA/QC unit, Change Control, CAPA, and vendor audits. |
| Regulatory Impact | High risk of IND rejection if used as a critical raw material. | Required for IND/NDA filings, supported by Drug Master Files (DMF). |
Footnotes
Regulatory Note: Governed by FDA (21 CFR Parts 210/211/312), EMA (EudraLex Vol 4), ICH Guidelines (E6/Q7/Q9/Q10), and compendial standards (USP <71>/<85>/<1043>).